Vaisala PTU300 Podręcznik Użytkownika Pobierz pdf (Strona 77)

Chapter 4 ________________________________________________________________ Operation

VAISALA _______________________________________________________________________ 75

Formatter string consists of quantities and modifiers.

When entering the command, use the abbreviations of the quantities.

For more information on quantities, see Table 2 on page 15.

The modifiers are presented in Table 14 below.

Table 14 The modifiers

Modifier Description

x.y Length modifier (number of digits and decimal places)

#t Tabulator

#r Carriage-return

#n Line feed

“” String constant

#xxx Special character, code "xxx" (decimal), for example

#027 for ESC

U5 Unit field and length

ADDR Transmitter address with two characters [00...99]

ERR Error flags for P, T, Ta, RH [0000 ... 1111], 0 = no error

STAT Transmitter status in 7 character field, for example:

N 0 no heating

h 115 probe heating active, power 115/255

H 159.0 purge heating active, temperature 159ºC

S 115.0 purge cooling active, temperature 115ºC

X 95.0 sensor heating active, temperature 95ºC

SN Transmitter serial number

TIME Time [hh:mm:ss]

DATE Date [yyyy-mm-dd]

OK Pressure stability indicator, two characters [OK or " "]

CS2 Modulus-256 checksum of message sent so far, ascii

encoded hexadecimal notation

CS4 Modulus-65536 checksum of message sent so far, ascii

encoded hexadecimal notation

CSX NMEA xor-checksum of message sent so far, ascii

encoded hexadecimal notation

A3H Pressure tendency [* or 0...8]

To output reading including pressure, temperature and relative

humidity

>form <cr>

6.1 "P=" P " " U6 3.1 "T=" T " " U3 3.1 "RH=" RH " " U4

\r \n

>send

P= 1033.7 hPa T= 22.2 'C RH= 38.3 %RH

1 2 ... 72 73 74 75 76 77 78 79 80 81 82 ... 172 173

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Vaisala PTU300 Podręcznik Użytkownika Strona 77